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1. downhole oil well packer, 2. with circlip structure, 3. with high temperature and pressure rubber barrel - details see: https://www.machineto.com/oil-well-packer-y111g-series-high-temperature-and-pressure-10282070

Model classification and technical parameters:

Item	Type
	QBGY111-115G	QBGY111-150G
Max OD mm	115	150
Min bore size mm	60	62
Suitable casing ID mm	121-132	158-166
Sealing pressure difference MPa	20	20
Working temperature °C	180	180
Two end connection threads	27/8TBG	27/8TBG

Use:

Y111G packer uses circlip structure, high temperature and pressure rubber barrel and can be used repeatedly in down hole. It has advantages of large pressure difference and long service life,etc. and is the new generation product for support type packer.